ofeldt



(No Model.) 5 Sheets-Sheet 1.

'I'. W. OFBLDT.

VAPOR ENGINE.

' 1\Io.51=0,'757k Patfented June 11, 1895-.

livr@ e# (No Modei.) 5 Sheets-.Sheet 2.

F. W. OFELDT.

VAPOR ENGINE No. 540,757. Patented June 1l, 1895..

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(No Model.) 5 sheetssheet 3.

' F. W.'OPELDT.

l vAPoRv ENGINE;

No. 540,757. Pateted June 11, 1895;'

Gwynne/17? Yu: Nonms Prrzns co, PHOTULITHm WASHINGTON, D4 c.

(No Model.) '5 sheets-'sheet 4.

F. W. OFELDT. VAPOR ENGINE.

No. 540,757.. i Patented June 11, 18195.

(No Model.)

www. www. y 551 @if F. W. OPBLDT.

VAPOR ENGINE.

Patented-June 11,1895.

5 Sheets-Sheet 5.

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FRANK vv.` orELDr, oF 'JERSEY oIrY,J Nn w JERsnY, AssIcNoR To THE MARINE VAPORKENGINE COMPANY, or sAMEPLAoE.

VAPOR-ENGINE.

SPECIFICATION reaping pare of Letters Patent No. 540,75*?, dated rune 11,1895. Application tiled January 18, 1895. Serial No. 458,821. (No model.)

To @ZI whom t may concern.-

Be it known that I, FRANK W. O FELDT, of Jersey City, in the .county of Hudson and State of vNew Jersey, hav'einvented certain new and useful Improvementsy in Vapor-Engines; and I do hereby declare the'following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to an improvement in engines, and more particularly to such as employ vapor as the motive power,-the object of the invention being to produce a simple and efficient engine adapted to be operated by means of vapor and to produce effectual apparatus for supplying the engine with such motive power. Y v

A further object is toprovide simple andv efficient reversing mechanism for the engine.

A-further object is Vto produce a vapor engine which shall be of compact construction and effectual in the performance of its functions.

lVith these objects in view the invention consists in certain novel features of construction and combinations and arrangements of parts, as hereinafter set forth, and pointed out in the claims.

In the accompanying.drawings,Figure lis a sectional View of the engine. Fig. 2 is a side elevation of the enginepartly in section.

Fig. 3 is a yiew illustrating the retort-chamber and pumpfor'supplying fu'elvgtothe retort-chamber. Fig. 4 is a'vplanof the retortchamberand retortslf Figs '5 and 6 are views illustrating the pump for supplying the retorts with'theliquid to loe'vaporized; Figs. 7, 8, and 9 are detail views. Y

A represents the casing of a triple cylinder single acting engine, having? cylinders B, B, l3,-eachA of which communicates with a central chamber C.

The casing Ais madewith an annular chamber or passage C adapted to communicate with -the valve chests ,or chambers `D of the various cylinders.' e

Y The main shaft E of the engine, is provided, at a point centrally located within the chamber C, with a crank arm E', to which the piston rods E2 of the various pistons E3 are connected, said piston rods being provided in vproximity to the pointof connection with the crank arm with" flat faces a, whereby the movement of said piston rods relatively to the other will be properly limited.

' Mounted withinthe casing A in alignment with the main shaftjEis a sleeveF, from which an arm F- projects, said arm being provided with a yperforation for the reception of the free end of the crank pin E', whereby the motion of the crank arm will be imparted thereto to cause the rotation of the sleeve F. Located Within the sleeve F and adapted to rotate with it is another sleeve G having a spirally formed opening for the reception of a spiral groove b in a shaft Gr. A sleeve H is loosely mounted on the shaft G and is made with'a groove c, Vin Which'a spline or feather c projecting from the shaft G projects, so that therot-ation of said shaftG will be impartedto the sleeve H.

Secured'to the sleeve H is an eccentric H', with which a pitman H2, is connected by means of an integral strap H3, the other end of said pitman (or more properly speaking, valve rod) being connected with a valve I, which reciprocates between the wall of the annular chamber C within the valve chamber and a plate I', said plate' being ladjustably supported by means of a screw d passing through the casing of the engine.

The valve I is made with an opening e adapted to connect the port 1 from the annular chamber C', withthe port-2, which. communicates with the end of the cylinder. Each of the several cylindersare, of course, provided with these ports, valve chambers and valves. Oneonly of the valves I is provided With the pitman H2 having the integral strap H3. The other two valves have links H5 connected with thiemat one end, and at their other ends are pivotally connected with ears c2 projecting from' said strap or eccentric.

When the parts are in lthe positions shown in Fig. l, the valve I is in position to supply vapor to the cylinder shown in section,jbut when said valve and piston 'move upwardly, the vapor under the piston will exhaust through the. port 2 into the valve chamber, under the valve, from which it will pass through an opening e in a plate J, into the IOC central chamber C, from which it passes through an outlet port 3 to a pipe, by means of which it is conveyed to a condenser of any suitable construction.

A stirrupfis swiveled to the outer end of the shaft G', and to this stirrup a lever K is pivoted at a point between its ends. The free end of the lever K is pivotally connected to a link f', and the latter is pivotally connected to an ear or lugfzprojecting from the casing of the engine. By operatingthis lever, a longitudinal movement can be imparted to the shaft G', whereby to cause the sleeve G on said shaft to make a partial revolution and thus reverse the engine.

A retort chamber L is mounted on the engine casing, and is provided with a perforated boss g, as shown in Fig. 5, for the passage of a pipe g', said pipe communicating at its lower end with the inlet port g2, shown in Figs. l and 2. The main body of the retort chamber L is preferably composed of asbestos g3 secured to and supported by thin metallic cylinders g4, and the base L of said retort chamber or cylinder is made dish-shaped as shown in Fig. 3. A coil or retort L2 is located in the bottom of the retort chamber and communicates with a pipe L3. A series of coils or re` torts M communicate at one end with the pipe or retort L2, and at their other ends with a stand-pipe or chamber, preferably at the upper end of thelatter. The stand pipe M communicates with the pipe g and rests upon a stand M2 located in the bottom of the retort chamber, said stand being provided with openings 71. for the passage of heat from a burner below it, to the retorts in the retort chamber, as will be hereinafter more particularly explained.

In order to maintain the retorts supplied with the liquid to be vaporized (preferably alcohol), the devices now to be described will be employed.

The pipe L3 communicates with a pump N located on the engine casing, and said pump also communicates with a condenser or tank (not shown), from which the supply of alcohol or other suitable liquid is forced by said pump into and through the retorts, said pump being provided with the usual inlet and outlet valves i, t. The plunger N of the pump N has al pitman N2 connected with it, said pitman terminating in a band or strap N3, which encircles and receives a reciprocating motion from an eccentric N4 carried by the main shaft E, whereby said pump will be kept continuously in operation while the engine is running.

In order to heat the retorts in the retort chamber and thus vaporize the alcohol or other volatile fluid injected into said retorts, the devices now to be described will be employed.

The bottom of the retort chamberL is made with openingsj for the admission of air to support combustion of oil within the chamber. A pipe O passes through one of these openings and after being coiled about the pipe g', extends downwardly and inwardly and terminates over a cup O located in the bottom of the retort chamber,-said pipe being provided at or near its end, on the top, with a jetor perforationj. The pipe O is connected with a valve O2, said valve also having a pipe O3 connected with it, the other end of which latter pipe communicates with a pump l. The pump P also communicates, by means of a suitable pipe, with an oil supply tank, not shown. A link 7c is connected at one end with the plunger p of the pump P and at the other end is connected with a lever Q at a point between the ends of the latten The lever Q, is provided at its free end with a plate Z which rests on an eccentric lt carried by the engine shaft E. A spring S is attached at one end to the lever Q at a point between its fulcrum and the point of attachment thereto ofV the link 7c, and at the other end said `spring is attached to a projection from the pipe O3.

From this construction and arrangement of parts it will be seen that the lever Q and consequently the plunger P of the pump P, will be moved in one direction by the eccentric R and in the reverse or return direction by the spring S. lt will also be seen that as the engine operates the pump P will be kept in operation to force oil through the pipes ()f4 and O. When the apparatus is started a small quantity of oil will flow through these pipes into the cup O', the oil being made to thus flow through these pipes (when or before the engine begins to run) by operating the pump P manually by operating a handle S projecting from the fulcrumed cud of the lever Q. When suflicient oil shall have cntered the cup O it will be lighted, thus to heat the pipes directly above it. When the pipe O shall have become sufficiently heated the oil therein will become vaporized and burn at the jetj the llame shooting upwardly and the heat passing upwardly through the openings h in the stand M2 and heating the retorts to vaporize the alcohol or other liquid in said retorts, and also retain the coii of the pipe O sufficiently heated. The vapor created in the retorts will flow into the stand pipe M and from thence through the pipe g into the annular chamber of the engine from whence it passes through the valve chambers into the cylinders, to operate the engine as above explained. From the engine, after performing its work, the vapor is exhausted as above explained and passes to a condenser (not shown)-from which it is again pumped to the retorts by means of the pump N.

In order to lubricate the engi ne, lubricating oil can be introduced with the motive power, and said motive power (vapor) will cause the lubricant to thoroughly and effectuallylubri cate the working parts of the engine.

A guard T is employed within the bottom of the retort chamber, which extends downwardly and terminates over the upper e'dge of the cup O.

ICO

IIO

Having fully described my invention, whatv I claim as new, and desire to secure by Letters Patent, isf l. The combination of a vapor engine'of three cylinders arranged at an angle to each other, pistons moving therein, a crank shaft common to all of the pistons, valve devices for admitting vapor to the cylinders successively, two eccentrics Imoved by the crank shaft, and two independent pumps operated by said eccentrics, whereby definite relative quantities of liquids are moved commensurate with each revolution of the engine.

2. The combination in a vapor engine of three cylinders arranged at an angle to each other, pistons moving therein, a crank shaft common to all of the pistons, valve devices for admitting vapor to the cylinders successively, an inclosin g case inclosin g the Working parts of the engine, an eccentric secured to the crank shaft and inclosed within said casing, and a pump operated by said eccentric and supported by said casing whereby the pump structure is protected.

3. The combination in a vapor engine of three cylinders arranged at an angle'to each other, pistons moving therein, a crank shaft common to all of the pistons, valve devices for admitting vapor to the cylinders successively, an inclosing case inclosing the working parts of the engine, an eccentric secured to the crank shaft and inclosed within said casing, a pump operated by said eccentric and supported by said casing whereby the Working parts of the pump are protected, an eccentric or cani device also operated by the crank shaft and arranged exterior to the engine casing, and a second pump operated thereby.

4. The combination with two or more cylinders, and pistons operating therein, of a shaft having a crank thereon, piston rods extending from one end of this crank to the pistons, a revolubly supported sleeve extending to turn the sleeve with the crank, slide valves, v-

an eccentric for operating the valves, and means projecting inwardly through the sleeve and overlapping the crank for reversing the valves, substantially as set forth.

6. The combination of two or morecylinders, pistons therein, a crank shaft, bent piston rods extending from the pistons to one end of the crank, a sleeve structure revolubly supported in the Wall of the engine overlap- V 'ping the crank and provided with anr arm connected with the crank and an internal spiral lgroove or grooves, a slide shaft having a spiral guide thereon which operates in connection with a corresponding spiral groove or grooves formed in the sleeve structure and overlapping the crank, a second sleeve arranged concentric with said slide shaft and having a sliding connection therewith but rotatable with it, an eccentric secnredto this second sleeve, valves for the cylinders, and strap heads connecting the valves to the cccentric. y y

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

FRANK NV. OFELDT. l Witnesses:

OSCAR LINDAUER, C. HOWARD SLATER. 

